private void CleanStates()
{
if (_fallbackStates == null)
{
return;
}
// Clear event handlers when switching tags.
foreach (var state in _fallbackStates)
{
switch (state)
{
case "album":
if (_albumChangedHandlerAdded)
{
ThumbnailManager.RemoveHandler(_tag.ArtistName, _tag.AlbumName, OnAlbumImageChanged);
_albumChangedHandlerAdded = false;
}
break;
case "artist":
if (_artistChangedHandlerAdded)
{
ThumbnailManager.RemoveHandler(_tag.ArtistName, OnArtistImageChanged);
_artistChangedHandlerAdded = false;
}
break;
}
}
_currentFallbackStage = -1;
}